20815994

素因数分解:

$2^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1$

素因数の和:781

約数の個数: 16

約数和(自身を含む): 31733856

約数和(自身を除く): 10917862

約数列:

[1, 2, 107, 211, 214, 422, 461, 922, 22577, 45154, 49327, 97271, 98654, 194542, 10407997, 20815994]

約数ペア:

[(1, 20815994), (2, 10407997), (107, 194542), (211, 98654), (214, 97271), (422, 49327), (461, 45154), (922, 22577)]